Type-writing machine



No. 6l9,880. Patented Feb. 2|, I899. J. FELBEL.

TYPE WRITING MACHINE.

(Application filed Dec. 14, 1898.) (No Model.)

INVENTDR 'WITNESSEE 1 a6 am. fiywmm.

UNITED STATES PATENT OFFICE.

JACOB FELBEL, OF NEW YORK, N. Y., ASSIGNOR TO THE WYOKOFF, SEAMANS 82;BENEDICT, OF ILION, NEWV YORK.

, TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 619,880, dated February21, 1899.

Application filed December 14, 1898. Serial No. 699,261. (No model.)

To all whom it may concern.-

Be it known that I, J ACOB FELBEL, a citizen of the United States, and aresident of the borough of Manhattan, in the city of New York, in thecounty of New York and State of New York, have invented certain newanduseful Improvements in Type Writing Machines, of which the following isa specification.

The main object of my invention is to provide means whereby acard-holder may be readily attached to and detached from the platen of atype-writing machine, and also to provide such a construction as thatthe platen may be used for ordinary work on paper when the card-holderis removed, thus obviating the necessity of the employment of twodifferent platens for the two kinds of work, which has been generalheretofore.

To this end my invention consists, primarily, in combining with aperforated platen a card-holder having pins or legs adapted to pass intothe perforations in the platen with a snug it and by reason of thefrictional engagement thereof properly retain the cardholder in workingposition upon the surface of the platen.

In the accompanying drawings, Figure 1 is a longitudinal verticalsection of a portion of a type-writing machine embodying myimprovements. Fig. 2 is a cross-section thereof, taken at the line a: mof Fig. 1. Fig. 3 is an inverted perspective view of the cardholderdetached; and Fig. 4 is asimilar view of one end of the card-holder,showinga modified construction of pin or leg.

In the several views the same part will be found designated by the samenumeral of referenoe.

1 designates the carriage or platen-frame of a type-writing machine, 2the cylindrical platen, and 3 the platen shaft or axle, which, as usual,is supported at its ends in side bars 4 of the frame or carriage and atits extremities is provided with hand wheels or knobs 5 for rotation ofthe shaft and of the platen connected thereto. The platen consists,preferably, of a hollow core 6, having a rubber or other suitable sheathor covering 7 and heads 8 and 9, secured to the ends of the core byscrews 10.

The right-hand platen-head 8 is preferably provided with ratchet-teeth11 to cooperate with the usual line-spacing pawl. (Not shown.)

The left-hand platen-head 9 is formed or provided with a sleeve or hub13, which surrounds the shaft 3 and to which it is secured by aset-screw 14.

At or near each end the platen is formed with a radial perforation 15 toreceive pins or legs 16, extending rigidly from the under side of acard-holder 17, one at or near each end of the latter. The said pins orthe like 16 are located a distance apart about equal to the distanceapart of the holes 15 in the platen. The pins or legs 16 may be securedto the card-holder 17 in any desired manner. I have shown said pins orlegs as provided with reduced or shouldered ends, which pass throughperforations in the card-holder and are then riveted or upset upon thebody of the latter. The free ends of the pins are preferably madetapering or conical,as shown, so as to facilitate their introductioninto the holes in the platen, and preferably the points are distant fromeach other a trifle more than the distance between the centers of theholes in the platen, so that the pins have to be flexed a little inpushing them into the holes, whereby greater friction is secured.

The card-holder comprises a bar or plate extending for the full lengthof the platen and provided at one edge with an undercut, so as to forman overhanging ledge 18 for the introduction of the card 19 in a mannercommon heretofore.

The card-holder is applied to the platen simply by passing or forcingthe pins 16 into the holes in the platen. The said holes preferablyextend through the sheath and the core, so as to afford the pins alonger bearing in the holes; but I do not wish to be limited to holes inthe platen that extend entirely through the core orrubber support. Thepins being made of a diameter substantially equal to that of the holesin the platen, they in consequence have a snug or comparatively tightfit in said holes, and hence merely by the friction of the pins in theholes the card-holder is maintained firmly in working position upon theplaten at all times during the use of the same. When it may be desiredto remove the card-holder, so as to employ the platen for writing uponpaper, the device is simply lifted or picked ofi, to facilitate whichoperation the end of the card-holder may project slightly beyond the endof the rubber cover of the platen, or in lieu thereof the rubber may bebeveled or chamfered off, so as to enable the finger to take a hold onthe under side of the cardholder.

For the purpose of securing additional friction or greater grippingaction of the pins within the holes the pins may be slotted orbifurcated, as shown at Fig. 4, so that the forks or members may have aspring-like action. In this construction the free ends of the bifurcatedpins are caused slightly to approach each other as they enter the holesin the platen, and in consequence the resiliency of the forks or memberscauses them to tend to spring outwardly and bind with greater force inthe holes.

In a companion case filed by me May 5, 1898, Serial No. 679,753, theimprovement made the subject-matter of this application is referred to,but not specifically claimed.

XVhat I claim as new, and desire to secure by Letters Patent, is

1. In a type-writing machine, the combination with a perforated platen,of a detachable card-holder having a pin or leg adapted to enter aperforation in the platen and hold the card-holder upon the surface ofthe platen by the frictional engagement of said pin with the walls ofsaid perforation; substantially as described.

2. In a type-writing machine, the combination with a perforated platen,of a detachable card-holder having pins or legs adapted to enterperforations in the platen and hold the card-holder upon the surface ofthe platen by the frictional engagement of said pins with the walls ofsaid perforations; substantially as described.

3. In a type-writing machine, the combina tion with a perforated platen,of a detachable card-holder having bifurcated pins or legs adapted toenter perforations in the platen and hold the card-holder upon thesurface of the platen by the frictional engagement of said pins with thewalls of said perforations; substantially as described.

4:. In a type-writing machine, the combination with a perforated platen,of a detachable card-holder having pins or legs the free ends of whichare tapering and are separated at their points slightly in excess of thedistance apart of the perforations in the platen measured from center tocenter; substantially as described.

Signed at the borough of Manhattan, in the city of New York, in thecounty of New York and State of New York, this 13th day of December, A.D. 1898.

JACOB FELBEL.

\Vitnesses:

K. V. DONOVAN, E. M. WELLS.

